New York: Crown Publishers, (1941). Early, if not first, printing. 252,  pp. Advert for "In Libya" follows text. 12mo. 7-5/8" x 5-1/8". Blue cloth binding with pale blue lettering. Dust jacket. VG+ (square & tight/age-toning to eps/top edge dusty)/VG (spine panel slightly sunned/light edgewear). Item #42352.1
Rear panel lists first three titles in the series, all 1941; issued as a breeder set?